Comparing The Enthalpy Changes Of Combustion Of Different Alcohols.

Plan:

Aim:

The enthalpy dislodge of combustion of a fuel is a measure of the energy transferred when one mole of fuel burn completely. A value for the enthalpy change can be obtained by using the burning fuel to heat urine and using fact that 4.2j of energy are required to hike the temperature of 1g of water by 1oC. In this investigation my aim is to baring the enthalpy change of combustion of a number of alcohols so that I can investigate how and why the enthalpy change is strickleed by the molecular structure of the alcohol.

I am passage to investigate the enthalpy change of combustion for the alcohol homologous series. I will investigate how alcohols with increasing number of carbons affect the enthalpy change when an alcohol goes under combustion. The energy that alcohols passage when being used is c on the wholeed the enthalpy change of combustion.

As I already know that alcohols are a series of organic compounds which all contain a -OH group.

My Prediction:

By using the knowledge that I already generate I think that the alcohols with a larger number of carbon atoms within the molecule will have a greater alcohol change of combustion than the alcohols with slight carbon atoms. So therefore I predict that as the molecular mass increases so does the enthalpy of combustion.

The alcohols that I qualify to use throughout this investigation are the following 6 alcohols:

Ø         M neutral spirits - CH3OH solvent; fuel; manufacture of organic chemicals; denaturing ethanol straight kitchen stove alcohol.

Ø         Ethanol - (CH3CH2OH) ethyl alcohol; metric grain alcohol. A colorless, flammable liquid produced by fermentation of sugars. safe-strength chains.

Ø         Butane - CH3CH2CH2CH3, colourless, with a characteristic natural odor

Ø         Pentan-1-ol -straight chains alcohol.

Ø         Hexan-1-ol - straight chain alcohol.

Ø         Propan-1-ol - straight chain alcohol.

Using the...

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